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Finding the Fourth Proportional to 489,555.80, 675,592.44 and 271,779.20

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Solution

The fourth proportional to 489,555.80, 675,592.44 and 271,779.20 is: 375,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,555.80 : 675,592.44 = 271,779.20 : x
  2. Step 2: Convert to fraction form
    489,555.80/675,592.44 = 271,779.20/x
  3. Step 3: Cross multiply
    489,555.80x = 675,592.44 × 271,779.20
  4. Step 4: Simplify right side
    489,555.80x = 183,611,972,199.44
  5. Step 5: Solve for x
    x = 183,611,972,199.44/489,555.80
  6. Step 6: Final answer
    x = 375,058.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.